For 38 years the man sought a pagan cure. Superstitious. Although Jesus commanded "Rise, take up your bed and walk" it's more likely feared any disobedience would cause his infirmity to return, than desire to obey Christ.
But it is correct Jesus was good to him, unthankful "rat" that he was.
For thousands of years, all men sought wrong, as nobody sought God as testified for the whole world.
All were under sin, none that understood, none that sought God, all were gone out of the way, none that did good, not one.
Jesus Christ commended HIs love towards us, while we all were those sinners, Christ died for us, when we were enemies, alienated and enemies in our minds by wicked works, who Christ reconciled to God by His death, to be saved by His life.
Romans 3:9 What then? are we better than they? No, in no wise: for we have before proved both Jews and Gentiles, that they are all under sin;
10 As it is written, There is none righteous, no, not one:
11 There is none that understandeth, there is none that seeketh after God.
12 They are all gone out of the way, they are together become unprofitable; there is none that doeth good, no, not one.
Romans 5:8 But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us.
9 Much more then, being now justified by his blood, we shall be saved from wrath through him.
10 For if, when we were enemies, we were reconciled to God by the death of his Son, much more, being reconciled, we shall be saved by his life.
Colossians 1:21 And you, that were sometime alienated and
enemies in your mind by wicked works,
yet now hath he reconciled
The man like all men, was seeking to be made whole, and Jesus came to make us whole.
The man did not seek God, as none sought it is testified, and he told that he had no man to help him.
Jesus helped him, and forgiving his sins ( as we know Jesus forgives sins on earth) made the man whole.
John 5:4 For an angel went down at a certain season into the pool, and troubled the water: whosoever then first after the troubling of the water stepped in was
made whole of whatsoever disease he had.
John 5:6 When Jesus saw him lie, and knew that he had been now a long time in that case, he saith unto him, Wilt thou be
made whole?
John 5:7 The impotent man answered him, Sir, I have no man, when the water is troubled, to put me into the pool: but while I am coming,
another steppeth down before me.
With the man sick of the palsy, Jesus speaks before the Pharisees, that the mans sins are forgiven him.
Jesus gives the same command this time in front of the Pharisees for the man to take up his bed and walk.
This man also had help from others who carried him, but the man at the pool had nobody but Jesus to have compassion on him.
Mark 2:5 When Jesus saw their faith, he said unto the sick of the palsy, Son, thy sins be forgiven thee.
Mark 2:9 Whether is it easier to say to the sick of the palsy, Thy sins be forgiven thee; or to say, Arise, and take up thy bed, and walk?
10 But that ye may know that the Son of man hath power on earth to forgive sins, (he saith to the sick of the palsy,)
11 I say unto thee, Arise, and take up thy bed, and go thy way into thine house.